In-Flow Heterogeneous Triplet–Triplet Annihilation Upconversion

In-Flow Heterogeneous Triplet–Triplet Annihilation Upconversion

Photon upconversion based on triplet–triplet annihilation (TTA-UC) is an attractive wavelength conversion with increasing use in organic synthesis in the homogeneous phase; however, this technology has not performed with canonical solid catalysts yet. Herein, a BOPHY dye covalently anchored on silic...

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Bibliographic Details
Published in:ACS Physical Chemistry Au Vol. 4; no. 3; pp. 242 - 246
Main Authors: Castellanos-Soriano, Jorge, Garnes-Portolés, Francisco, Jiménez, M. Consuelo, Leyva-Pérez, Antonio, Pérez-Ruiz, Raúl
Format: Journal Article
Language:English
Published: United States American Chemical Society 22-05-2024
Subjects:
TTA
continuous-flow
Heterogeneous
visible light
Mizoroki−Heck
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Summary:Photon upconversion based on triplet–triplet annihilation (TTA-UC) is an attractive wavelength conversion with increasing use in organic synthesis in the homogeneous phase; however, this technology has not performed with canonical solid catalysts yet. Herein, a BOPHY dye covalently anchored on silica is successfully used as a sensitizer in a TTA system that efficiently catalyzes Mizoroki–Heck coupling reactions. This procedure has enabled the implementation of in-flow reaction conditions for the synthesis of a variety of aromatic compounds, and mechanistic proof has been obtained by means of transient absorption spectroscopy.
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ISSN:2694-2445
2694-2445
DOI:10.1021/acsphyschemau.3c00062